Selvage-loop-retaining mechanism



Feb. 12, 1929.

1,701,668 R. G. EWEN SELVAGE LOOP RETAINING MECHANISM Filed May 12, 1928 2 Sheets-Sheet 1 lnvenfor. Robefl G. Ewen byMMl Mj AT Tys i Feb. 12, 1929.

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R0 berT G. Ewen ATTys.

Patented Feb. 12, 1929.

urrsn sr BGBERT Ts PATENT OFFICEL G. EWEN, OF WASHINGTON, REODE ISLAND, ASEBIGNOR TO DRAPER CORPORA- TION, OF HOPEIDALE, MASSACHUSETTS, A CQBPORATION OF MAINE.

SELVAGE-LOOPHRETAINING MECHANISM.

Application filed. May 12,

This invention relates to mechanism for forming a perfect selvage in the weaving of cloth in a loom by means oi loop retaining fingers operating one adjacent each selvage in such a manner as to prevent the filling during the weaving operation from being drawn so tightly as to indent the selvage and thus produce an irregular selvage.

The object or theinvention is to provide a selvage loop retaining lllOCllltl'llSll'l of a simple and etlicient construction, one that is readily operated and not likely to get out oi oi dcr and one of suiiicient strength to withstand. the pull of any type of filling, however coarse, and one capable of being employed in cloth woven under a heavy tension.

The object of the invention is further to provide such a mechanism which may he embodied in and supported by the temples uniformly located adjacent the selvage for maintaining the width of the cloth.

These and other objects and features of the invention will appear more fully from. the accoinpanying deseriptionand drawings and will be particularly pointed out in the claims.

As the construction employed is preferably the same at each side of the loom, it will be sutlicient to illustrate the construction at but one side of the loom and for that purpose the mechanism is shown at the right-hand side.

The selvage loop retaining mechanism of this invention may be carried by any suitable support mounted on the loom frame and locatcd adjacent the selvage forward of the tell. but it is partcularly adapted to be carried by the temple and is so illustrated herein. any form of suitable temple may be thus 7 employed, but for convenience of illustration a temple such as shown in the patent to T'Tttl'- daker, No. 231,809, August 31, 1880, is shown.

The drawings illustrate a simple and prc-v ferred form of the invention carried by the temple, as already noted.

In the drawings:

Fig. 1 is a side elevation of the mechanisn'i with a portion of the lay of the loom shown in icross section.

Fi 2 is a view generally similar to Fig. 1 looking at the opposite side of the mechanism and with the mechanism chiefly in vertical cross section.

Fig. 3 is a top plan view of the mechanism.

The support for the selvage loop retaining mechanism is shown as a temple having a shank 1 mounted from a fixed portion of the 1928. Serial No. 277,160.

loom frame, such as the breast beam, not shown, and having a head 2 carrying the usual transversely extending temple roll 3 and lo *ated adjacent the sclvage harward of the tell oi? the cloth, all in the usual manner. As noted, the temple may be of anv oi the usual types. I V I A portion oi the lay l or the loom with. the reed 5 is shown. I

A; circular. arcuate uiding groove is formed in the support atiorded by t1 e temple head for guiding the loop retaining finger. As shown, a block 6 of general L-shape in cross section is mounted on the temple head 2 for this purposeby means of a vertical screw 7 and a horizontal screw 8. This circular arcuate groove 9 is out into the face of the depending portion of the block 6 which abuts against the inside of the. head and eX- tends fore and aft or in the general direction of the selvage with its concave side toward the cloth and thus arched around the temple roll. The other side or wall of the groove is formed bythe temple head 2 against which-the depending portion of the block 6 abuts.

The loop retaining finger has its shank .10 of a similar, circular, arcuate form to lit and slide in the groove 9 andat its rearward end is formed to present a tapering point 11 around which the filling is held.

The loop retaining finger is shown as oper ated by a plunger anda spring. In the construction illustrated, cylindricalplunger 12 is mounted for horuaontal moven'ient fore and aft in the block (3 whic is serured to and 'l' ruis a part of the temple head, the block being bored out to receive the plunger. The plunger and linger are tirovided with aligi'ied vertical slots, 13 and 14 respectively, opening "from their opposed surfaces A link 15 is pivoted at 16 at one end in the slot 13 to the plunger 12 and at-the other end at 17 in the slot 1% to the finger 10. Consequently as the plunger is reciprocated, the finger is moved forward and rearward in its guiding slot.

The plunger is shown as normally projected rearward by a helical spring 18 connected at its rearward end to a pin 1%) mounted in the block 6 and at its forward end to a set screw 20 which locks a stop collar 21 to the plunger 12 and thus limits the rearward movement of the plunger and finger. The plunger is shown as given its forward movement by the contact of the lay with a head 22 on the rear end of the plunger.

When. the plunger is projected rearward, the stop 21 is adjusted so that the point 11 of the loop retaining finger stands vertical, as shown iniFigs. 1 and 3, alongside the selvage, preferably just outside the seivage, although it may stand at any desired position laterally with respect to the selvage. VVhen the-plunger is moved to forward position, the finger stands clear of the cloth forward of the fell.

The operation of the mechanisn'i will be ap- Jarent. Considering the operation at the 'ight-hand side of the loom illustrated, and he lay beating up after the shuttle has been picked into the right-hai'id box, the lay contacting with the head 22 of the plunger forces the plunge forward carrying with it the loop retaining finger to its forward position clear of the cloth and forward of the fell. After this pick is beaten in, the lay swings hack allowing the loop retaining finger projected rearward by the action of the spring 18 to move down behind the filling extending from the selvage to the shuttle. The shuttle then makes the next pick to the left side of the loom, carrying the filling around the finger;

As the lay again swings forward to beat in this pick, it again moves the finger. to its forward position, withdrawing it from the filling looped around it ust before final beatup takes place. Thus the filling is held by the loop retaining finger until just as it is beaten into the cloth, thus insuring a regular and even selvage.

It will be seen that the'loop retaining finger is firmly held and guided in its arcuate guiding slot and supported substantially throughout its length. The operating connections with the plunger aiiord an easy and accurate movement of the finger. No matter how great the strain of the filling upon the finger may be, the finger will hold the filling and insure the accurate formation of the selvage.

The parts in which the invention is embodied. may readily be attached to existing temples and are readily and economically 11 iufactured.

aving thus described the invruition, what is claimed as new, and desired to be secured by Letters Patent, is:

1. A selvage loop retaining mechanism for looms comprising a support mounted on the loom frame and located adjacent the sel-vage forward of the fell, a circular arcuate guiding groove in said support extending in the direction of the selvage with its concave face toward the cloth, a loop retaining finger having an arcuate shank fitting and sliding in said groove and having a point standing vertical alongside of the selvage when the finger is projected rearward and standing clear of the cloth forward of the fell when the linger is moved to forward position, a plunger mounted for horizontal movement in the sup port above the finger and having a head in the path of the lay, a spring acting non mally to project the plunger rearward, and a link connecting the plunger and linger.

A salvage loop retaining mechanism for looms comprising the construction defined in claim 1, in which the plunger and linger have aligned vertical slots opening from their opposed faces and in which the link extends into both of said slots and is pivoted at one end to the plunger and at the other end to the finger.

3. A selvage loop retaining mechanism for looms comprising a temple mounted on the loom frame and having a head with a temple roll therein, a circular arcuate guiding groove in the temple head extended fore and aft and arched around the temple roll, a loop retaining finger having an arcuate shank fitting and sliding in said groove and having a point standing vertical alongside of the selvage when the finger is projected rearward and standing clear of. the cloth forward of the fell when the finger is moved to forward position, a plunger mounted for horizontal movement in the temple head above the finger and having a head in the path ofthe lay, a spring acting normally to project the plunger rearward, and a link connecting the plunger and finger.

4. A selvage loop retaining mechanism for looms comprising the construction defined in claim 3, in, which the plunger and finger have;

aligned vertica slots opening from their opposed i' .b and in which the link extends into both of said slots andis pivoted at one endto the plunger and at the other end to the finger.

ln'testimony whereof, I have signed my name to this specification.

ROBERT G. ElVEll. 

